hadoop ResourceUtilizationPBImpl 源码
haddop ResourceUtilizationPBImpl 代码
文件路径:/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/records/impl/pb/ResourceUtilizationPBImpl.java
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.api.records.impl.pb;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.proto.YarnProtos.ResourceUtilizationProto;
import org.apache.hadoop.yarn.proto.YarnProtos.ResourceUtilizationProtoOrBuilder;
import org.apache.hadoop.yarn.api.records.ResourceUtilization;
import java.util.Map;
@Private
@Unstable
public class ResourceUtilizationPBImpl extends ResourceUtilization {
private ResourceUtilizationProto proto = ResourceUtilizationProto
.getDefaultInstance();
private ResourceUtilizationProto.Builder builder = null;
private boolean viaProto = false;
public ResourceUtilizationPBImpl() {
builder = ResourceUtilizationProto.newBuilder();
}
public ResourceUtilizationPBImpl(ResourceUtilizationProto proto) {
this.proto = proto;
viaProto = true;
}
public ResourceUtilizationProto getProto() {
proto = viaProto ? proto : builder.build();
viaProto = true;
return proto;
}
private void maybeInitBuilder() {
if (viaProto || builder == null) {
builder = ResourceUtilizationProto.newBuilder(proto);
}
viaProto = false;
}
@Override
public int getPhysicalMemory() {
ResourceUtilizationProtoOrBuilder p = viaProto ? proto : builder;
return (p.getPmem());
}
@Override
public void setPhysicalMemory(int pmem) {
maybeInitBuilder();
builder.setPmem(pmem);
}
@Override
public int getVirtualMemory() {
ResourceUtilizationProtoOrBuilder p = viaProto ? proto : builder;
return p.getVmem();
}
@Override
public void setVirtualMemory(int vmem) {
maybeInitBuilder();
builder.setVmem(vmem);
}
@Override
public float getCPU() {
ResourceUtilizationProtoOrBuilder p = viaProto ? proto : builder;
return p.getCpu();
}
@Override
public void setCPU(float cpu) {
maybeInitBuilder();
builder.setCpu(cpu);
}
@Override
public float getCustomResource(String resourceName) {
return getCustomResources().get(resourceName);
}
@Override
public Map<String, Float> getCustomResources() {
ResourceUtilizationProtoOrBuilder p = viaProto ? proto : builder;
return ProtoUtils.
convertStringFloatMapProtoListToMap(p.
getCustomResourcesList());
}
@Override
public void setCustomResources(Map<String, Float> customResources) {
if (customResources != null) {
maybeInitBuilder();
builder.addAllCustomResources(ProtoUtils.
convertMapToStringFloatMapProtoList(customResources));
}
}
@Override
public int compareTo(ResourceUtilization other) {
int diff = this.getPhysicalMemory() - other.getPhysicalMemory();
if (diff == 0) {
diff = this.getVirtualMemory() - other.getVirtualMemory();
if (diff == 0) {
diff = Float.compare(this.getCPU(), other.getCPU());
if (diff == 0) {
diff = this.getCustomResources().size() -
other.getCustomResources().size();
// todo how to compare custom resource in same size
}
}
}
return diff;
}
}
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